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根据大量试验结果,分析了试件养护龄期、聚丙烯纤维体积掺量以及水泥掺量对聚丙烯纤维水泥稳定碎石抗压回弹模量的影响,得出了相应的影响规律。结果表明:聚丙烯纤维的掺加对水泥稳定碎石抗压回弹模量有明显的降低;随着试验龄期的增长,抗压回弹模量不断增大;在聚丙烯纤维体积掺量小于1‰的范围内,随着纤维体积掺量的增加,水泥稳定碎石抗压回弹模量有逐渐减小的趋势;随着水泥掺量的增加,聚丙烯纤维水泥稳定碎石抗压回弹模量基本呈线性增长。
According to a large number of test results, the influence of curing age, polypropylene fiber volume content and cement content on the compressive resilience modulus of polypropylene fiber cement stabilized macadam was analyzed, and the corresponding influence laws were obtained. The results show that polypropylene fiber has a significant decrease in the compressive springback modulus of cement-stabilized macadam. With the increase of test age, the compressive resilience modulus increases continuously. When the volume fraction of polypropylene fiber Less than 1 ‰, the compressive resilience modulus of cement stabilized macadam tends to decrease with the increase of fiber volume fraction. With the increase of cement content, the compressive strength of polypropylene fiber cement stabilized macadam Resilient modulus increased linearly.